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bungeman@google.coma5501992012-05-18 19:06:41 +00001/*
2 * Copyright 2011 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
bungeman@google.coma5501992012-05-18 19:06:41 +00007
bungeman@google.coma5501992012-05-18 19:06:41 +00008#include "SkBitmap.h"
9#include "SkCanvas.h"
10#include "SkColor.h"
Mike Reed212e9062018-12-25 17:35:49 -050011#include "SkFont.h"
caseq26337e92014-06-30 12:14:52 -070012#include "SkFontDescriptor.h"
Mike Reed22bee5a2019-01-09 21:48:09 -050013#include "SkFontPriv.h"
bungeman@google.coma5501992012-05-18 19:06:41 +000014#include "SkGraphics.h"
15#include "SkPaint.h"
16#include "SkPoint.h"
17#include "SkRect.h"
robertphillips@google.comcb3b6152013-11-14 14:47:56 +000018#include "SkStream.h"
bungeman@google.coma5501992012-05-18 19:06:41 +000019#include "SkTypeface.h"
tfarina@chromium.orge4fafb12013-12-12 21:11:12 +000020#include "SkTypes.h"
tfarina@chromium.org8f6884a2014-01-24 20:56:26 +000021#include "Test.h"
bungeman@google.coma5501992012-05-18 19:06:41 +000022
Hal Canary21c34822019-01-09 12:51:52 -050023static const SkColor bgColor = SK_ColorWHITE;
24
25static void create(SkBitmap* bm, SkIRect bound) {
26 bm->allocN32Pixels(bound.width(), bound.height());
27}
28
29static void drawBG(SkCanvas* canvas) {
30 canvas->drawColor(bgColor);
31}
32
33/** Assumes that the ref draw was completely inside ref canvas --
34 implies that everything outside is "bgColor".
35 Checks that all overlap is the same and that all non-overlap on the
36 ref is "bgColor".
37 */
38static bool compare(const SkBitmap& ref, const SkIRect& iref,
39 const SkBitmap& test, const SkIRect& itest)
40{
41 const int xOff = itest.fLeft - iref.fLeft;
42 const int yOff = itest.fTop - iref.fTop;
43
bungeman@google.coma5501992012-05-18 19:06:41 +000044 for (int y = 0; y < test.height(); ++y) {
45 for (int x = 0; x < test.width(); ++x) {
Hal Canary21c34822019-01-09 12:51:52 -050046 SkColor testColor = test.getColor(x, y);
47 int refX = x + xOff;
48 int refY = y + yOff;
49 SkColor refColor;
50 if (refX >= 0 && refX < ref.width() &&
51 refY >= 0 && refY < ref.height())
52 {
53 refColor = ref.getColor(refX, refY);
54 } else {
55 refColor = bgColor;
56 }
57 if (refColor != testColor) {
bungeman@google.coma5501992012-05-18 19:06:41 +000058 return false;
59 }
60 }
61 }
62 return true;
63}
64
tfarina@chromium.orge4fafb12013-12-12 21:11:12 +000065DEF_TEST(FontHostStream, reporter) {
Hal Canary21c34822019-01-09 12:51:52 -050066 {
67 SkPaint paint;
68 paint.setColor(SK_ColorGRAY);
69
70 SkFont font(SkTypeface::MakeFromName("Georgia", SkFontStyle()), 30);
Mike Reed22bee5a2019-01-09 21:48:09 -050071 font.setEdging(SkFont::Edging::kAlias);
Hal Canary21c34822019-01-09 12:51:52 -050072
73 SkIRect origRect = SkIRect::MakeWH(64, 64);
74 SkBitmap origBitmap;
75 create(&origBitmap, origRect);
76 SkCanvas origCanvas(origBitmap);
77
78 SkIRect streamRect = SkIRect::MakeWH(64, 64);
79 SkBitmap streamBitmap;
80 create(&streamBitmap, streamRect);
81 SkCanvas streamCanvas(streamBitmap);
82
83 SkPoint point = SkPoint::Make(24, 32);
84
85 // Test: origTypeface and streamTypeface from orig data draw the same
86 drawBG(&origCanvas);
Mike Reed22bee5a2019-01-09 21:48:09 -050087 origCanvas.drawString("A", point.fX, point.fY, font, paint);
Hal Canary21c34822019-01-09 12:51:52 -050088
Herb Derby087fad72019-01-22 14:45:16 -050089 sk_sp<SkTypeface> typeface = font.refTypefaceOrDefault();
Hal Canary21c34822019-01-09 12:51:52 -050090 int ttcIndex;
91 std::unique_ptr<SkStreamAsset> fontData(typeface->openStream(&ttcIndex));
92 if (!fontData) {
93 // We're using a SkTypeface that can't give us a stream.
94 // This happens with portable or system fonts. End the test now.
95 return;
96 }
97
98 sk_sp<SkTypeface> streamTypeface(SkTypeface::MakeFromStream(std::move(fontData)));
99
100 SkFontDescriptor desc;
101 bool isLocalStream = false;
102 streamTypeface->getFontDescriptor(&desc, &isLocalStream);
103 REPORTER_ASSERT(reporter, isLocalStream);
104
Mike Reed22bee5a2019-01-09 21:48:09 -0500105 font.setTypeface(streamTypeface);
Hal Canary21c34822019-01-09 12:51:52 -0500106 drawBG(&streamCanvas);
Mike Reed22bee5a2019-01-09 21:48:09 -0500107 streamCanvas.drawString("A", point.fX, point.fY, font, paint);
Hal Canary21c34822019-01-09 12:51:52 -0500108
109 REPORTER_ASSERT(reporter,
110 compare(origBitmap, origRect, streamBitmap, streamRect));
bungeman@google.coma5501992012-05-18 19:06:41 +0000111 }
112 //Make sure the typeface is deleted and removed.
113 SkGraphics::PurgeFontCache();
114}